Oil filter



July 13, 1937. R REED 2,086,739

OIL FILTER Filed Feb. 29, 195e I /V VE /V TOR, BxH/1L pff HEL-ID,

Patented July 13, 514937y UNITED STATES PATENT OFFICE 2 Claims.

This invention relates to an oil lter, particularly for engines, and is of the duplex type in which oil enters at one end into the filter housing and then passes thru one of two lter packs towards two outlets in the lter housing.

An object of my invention is to provide a filter which will effectively separate the sludge and heavy particles from the oil before the oil passes thru the filter packs, and with a novel means of draining or removing the sludge and heavy particles from the filter housing.

Another object is to provide a novel oil filter in which the filter packs can be easily removed and cleaned or replaced.

Still another object is to provide a novel lter which will operate for a long period of time without requiring attention in the way of cleaning or replacing.

Other objects, advantages and features of invention may appear from the accompanying drawing, the subjoined detailed description, and the appended claims.

In the drawing:

Figure 1 is a longitudinal sectional view of my lter.

Figure 2 is a top plan view of the same.

Figure 3 is a sectional view taken on line 3-3 of Fig. 1.

Referring more particularly to the drawing, the numeral I indicates the lter housing, substantially cylindrical in shape, altho both ends are somewhat flared to a slightly greater ,diameter at the outer ends. An' oil intake fitting 2 extends into the housing I, substantially in the center of said housing. The tting 2 is provided with outwardly extending ports 3 so that the incoming oil is spread-outwardly for a purpose to be further described.

On each side of the intake 2 and spaced therefrom, I provide corrugated baffle plates 4, 5 which plates extend entirely across the housing I. Each of the plates is set against a stop lug 6, 1, respectively, to prevent its moving inwardly. Thus, a sludge chamber 8 is provided in the center of the filter. Each of the baille plates 4, 5 is provided with a plurality of upwardly extending ports 9 thru which the oil passes into the filter packs, to be subsequently described.

It is Ato be noted that the holes 9 are directedV upwardly, the purpose being to permit only the oil to Apass into the filter packs while the heavier sludge, carbon particles, and the like, are dropped to the bottom of the chamber 8.

A drain sump I0 is provided in the body I at the bottom of the chamber 8. This sump is partially covered by a baille plate II. A drain plug I2 closes the bottom of the sump, and on removal of this plug, the sludge and heavy particles can be removed from the filter.

Filter packs I3, I4 are provided in each end of the housing I and these filter packs preferably comprise spirally-wound filter cloth over paper. Suitable filtering material, such as cloth, is provided at the inner ends of each of the lter packs, as shown at I5. A screen I6 is provided at the outer ends of each of the filter packs, the purpose of which is to prevent any of the ltering material from entering the outlet lines and thence passing into the engine.

The iilter packs I3, I4 are held in position against the baile plates 4, 5 by means of bolts I'l, I8, respectively. These bolts screw into a spacer block I9 which block is positioned within the chamber 8. Heads 29, 2I close the outer ends of the housing I and the outlet lines 22, 23 extend from these heads and are brought together in a single line thru the T-tting 24.

When the plug I2 is removed, the oil which is standing in the bottom of each of the lter packs I3, I4, will drain out. To prevent this, I provide a pair of transverse plates 25, 26 which are arcuate in shape so that the incoming oil can pass over the tops of the plates but whenthe lter is drained, these plates will prevent the clean oil from passing out thru the sump. I0.

Having described my invention, I claim:

1. An oil lter comprising a housing, an oil intake tting extending into the -center of the housing, said housing having la sludge chamber in the center thereof, a sump in the lower end of the sludge chamber, a removable plug in the sump, a lter pack in each end of the housing, a head closing each end of the housing, an outlet pipe extending from each head, a corrugated baffle plate at the inner end of each of the lter packs, each of said plates having oil holes extending therethru, a transverse plate at the inner end of each of the filter packs, said plates extending partially to the top of the sludge chamber, a spacer block arranged between the last named plates, and a bolt extending thru each of the filter packs,l both of said bolts screwing into the spacer block whereby the lter packs are held in position.

2. An oil lter comprising' a housing, said housing flaring towards the outer ends thereof, a lter pack in each end of the housing, said housing having a sludge chamber in the center thereof between the lter packs, van intake tting extending into the sludge chamber, said fitting having outwardly directed ports therein. a corrugated baile plate at the inner end of each of the :lter packs, said baiiie plates having oil holes extending therethru, a drain plug in the bottom of the sludge chamber, a head closing each end of the housing, and an outlet pipe extending from each head. a plate on the inner end of each of the filter packs, said plates extending transverseiy of the housing and partly to the top of the sludge chamber, a spacer block arranged between the last named plates, and a bolt extending thru each ot the iiiter packs, both of said bolts screwing into the spacer block where- 5 by the filter packs are held in position.

RALPH REED. 

